package ooday03;

public class InterfaceDemo {





    //演示接口的语法
    interface  Inter{
        public  abstract void show();
        void test();
        //void say(){} //编译错误，抽象方法不能有方法体

    }

    //演示接口的实现
    interface Inter1{
        void show();
        void test();
    }

    class Aoo implements Inter1{
        public void show(){}
        public void test(){}
    }
    interface Inter2{
        void show();
    }
    interface Inter3{
        void test();
    }
    abstract class Boo{
        abstract void   say();
    }
    class Coo extends Boo implements Inter2,Inter3 {
        public void show() {
        }

        public void test() {
        }

        void say() {
        }


    }
        interface Inter4{
            void show();
        }
        interface Inter5 extends Inter4{
        void test();
        }
        class Doo implements Inter5{
        public void test(){}
        public void show(){}
        }

}
